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1 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 Future Circular Collider (FCC) Study Michael Benedikt, Frank Zimmermann.

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Presentation on theme: "1 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 Future Circular Collider (FCC) Study Michael Benedikt, Frank Zimmermann."— Presentation transcript:

1 1 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 Future Circular Collider (FCC) Study Michael Benedikt, Frank Zimmermann

2 2 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 Motivation & scope Parameters & design challenges Preparing global FCC collaboration Study organization – WBS Study Time Line, next steps EU FCC design study proposal Summary Outline

3 3 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 with emphasis on proton-proton and electron-positron high-energy frontier machines. These design studies should be coupled to a vigorous accelerator R&D programme, including high-field magnets and high-gradient accelerating structures, in collaboration with national institutes, laboratories and universities worldwide. ….“to propose an ambitious post-LHC accelerator project at CERN by the time of the next Strategy update”: d) CERN should undertake design studies for accelerator projects in a global context, Summary: European Strategy Update 2013 Design studies and R&D at the energy frontier

4 4 Future Circular Collider Study Michael Benedikt FCC Kick-Off volumes CDR: physics & detectors, accelerator complex, strategy, cost & schedule Collaborative effort: 40+ institutes worldwide CLIC CDR and cost study (2012)

5 5 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 Future Circular Collider Study - SCOPE CDR and cost review for the next ESU (2018) Forming an international collaboration to study: pp-collider (FCC-hh)  defining infrastructure requirements e + e - collider (FCC-ee) as potential intermediate step p-e (FCC-he) option km infrastructure in Geneva area ~16 T  100 TeV pp in 100 km ~20 T  100 TeV pp in 80 km

6 6 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 High-energy hadron collider FCC-hh as long-term goal Seems only approach to get to 100 TeV range in the coming decades High energy and luminosity at affordable power consumption Lead time design & construction > 20 years (LHC study started 1983!)  Must start studying now to be ready for 2035/2040 FCC motivation: pushing energy frontier Lepton collider FCC-ee as potential intermediate step Would provide/share part of infrastructure Important precision measurements indicating the energy scale at which new physics is expected Search for new physics in rare decays of Z, W, H, t and rare processes Lepton-hadron collider FCC-he as option High precision deep inelastic scattering and Higgs physics Most aspects of collider designs and R&D non-site specific. Tunnel and site study in Geneva area as ESU requests.

7 7 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 Infrastructure Hadron collider conceptual design Hadron and lepton injectors Lepton collider conceptual design Safety, operation, energy management environmental aspects Accelerators and infrastructure conceptual designs High-field magnets Superconducting RF systems Cryogenics Specific technologies Planning Technologies R&D activities planning Hadron coll. physics experiments interface, integration e + e - coll. physics experiments interface, integration e - - p physics, experiments, Interface, integration Physics experiments detectors Main areas of FCC design study

8 8 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 FCC-hh parameters – starting point Energy 100 TeV c.m. Dipole field ~ 16 T (Nb 3 Sn), [20 T option HTS] Circumference ~ 100 km #IPs2 main (tune shift) + 2 Luminosity/IP main 5x10 34 cm -2 s -1 Stored beam energy8.2 GJ/beam Synchrotron radiation 26 W/m/aperture (filling fact. ~78% in arc) Long. emit damping time0.5 h Bunch spacing 25 ns [5 ns option] Bunch population (25 ns)1x10 11 p Transverse emittance 2.2 micron normalized #bunches10500 Beam-beam tune shift0.01 (total)  * 1.1 m (HL-LHC: 0.15 m) already available from SPS for 25 ns

9 9 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 Optics and beam dynamics IR design, dynamic aperture studies, SC magnet field quality Impedances, instabilities, feedbacks Beam-beam, e-cloud, resistive wall, feedback systems design Synchrotron radiation damping controlled blow up, luminosity levelling, etc… Energy in beam & magnets  dump, collimation, quench protection Stored beam energy critical: 8 GJ/beam (0.4 GJ LHC) Beam losses, radiation effects  collimation, shielding Synergies intensity frontier (SNS, J-PARC, PSI, PIP, FRIB, ESS, FAIR) High synchrotron radiation load on beam pipe Up to 26 W/m/aperture in arcs, total of ~5 MW for FCC-hh (LHC has a total of 1W/m/aperture from different sources) Heat extraction: photon stop, beam screen temperature, cryo load, Synergies with SSC,VLHC, LHC, light sources, SppC, … FCC-hh design challenges

10 10 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 High-field magnet R&D targets FCC-hh baseline 16T Nb 3 Sn technology for ~100 TeV c.m. in ~100 km Develop Nb 3 Sn-based 16 T dipole technology, with sufficient aperture (~40 mm) and accelerator features (field quality, protectability, cycled operation). In parallel conductor developments Possible goal: 16T short dipole models by 2018 (America, Asia, Europe) Possible goal: demonstrate HTS/LTS 20 T technology in two steps a field record attempt to break the 20 T barrier (no aperture), and a 5 T insert, with sufficient aperture (40 mm) and accel. features In parallel HTS development targeting 20 T: HTS insert, generating O(5 T) additional field in large aperture O(100 mm, 15 T)

11 11 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 FCC-ee parameters – starting point Design choice: max. synchrotron radiation power set to 50 MW/beam Defines the maximum beam current at each energy 4 physics operation points (energies) foreseen Z, WW, H, ttbar Optimization at each operation point, mainly via bunch number and arc cell length ParameterZWWHttbarLEP2 E/beam (GeV) L (10 34 cm -2 s -1 )/IP Bunches/beam I (mA) Bunch popul. [10 11 ] Cell length [m] Tune shift / IP

12 12 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 FCC-ee design challenges Short beam lifetime from high luminosity (radiative Bhabha scattering) Top-up injection (single injector booster in collider tunnel) Additional lifetime limit from beamstrahlung at top operation energy Flat beams (small vertical emittance, small vertical  * ~ 1 mm) Final focus with large (~2%) energy acceptance to reduce losses Machine layout for high currents, large #bunches at Z pole, WW, H Two ring layout and configuration of the RF system. Polarization for high precision energy calibration at Z pole and WW with long natural polarization times (WW: ~10 hours, Z: ~200 hours) Important expertise available worldwide and potential synergies: IR design, experimental insertions, machine detector interface, (transverse) polarization RHIC, VEPP-2000, BEPC-II, SLC, LEP, B- and Super-B factories, CEPC, ILC, CLIC

13 13 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 SC-RF main R&D areas

14 14 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 FCC-he parameters – starting point Design choice: beam parameters as available from hh and ee Max. e ± beam current at each energy determined by 50 MW SR limit. 1 physics interaction point, optimization at each energy collider parameterse ± scenariosprotons speciese ± (polarized)e±e± e±e± p beam energy [GeV] luminosity [10 34 cm -2 s -1 ] bunch intensity [10 11 ] #bunches per beam beam current [mA]  x,y * [micron] 4.5, 2.3

15 15 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 FCC-he design challenges Integration aspects, machine detector interface Synchrotron radiation Large polar angle acceptance IR optics & magnets with 3 beams Crossing scheme Detector integrated dipole, final SC quadrupoles, crab cavities, Concurrent operation of e ± h with hh or/and e + e - operation? Relevant expertise available worldwide and potential synergies:  HERA, eRHIC, MEIC, HIAF-EIC,… Alternative option for eh collisions in connection with FCC-hh: Potential reuse of an energy recovery linac (ERL) that is being studied in the frame of the LHeC study.

16 16 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 Following ESU in May 2013, creation of a small preparation group in autumn 2013 to prepare on a short time scale: preliminary draft baseline parameter sets for all options a possible work breakdown structure and study organisation an international kick-off meeting (now!) FCC global design study preparation Kick-off event should start process of internat. collaboration presenting preparatory work as basis for discussion  draft parameter sets & WBS documents available inviting feedback and suggestions working towards formation of a global design study collaboration integrating all aspects of machines, physics and detectors Reflected in kick-off meeting programme.

17 17 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 International collaboration process in 2014 Proposal for next steps: Suggestions and comments from international community and discussion on study contents, organisation and resources Invitation of non-committing expressions of interest for contributions from worldwide institutes by end May 2014 Prepare for formation of International Collaboration Board (ICB); proposed date first meeting 9-11 September 2014, to start FCC study March April May June July August September 2014 kick-off event expressions of interest (EOI) proposed 1st ICB meeting discussionsiterations Process can be moderated by preparation group (possibly extended – following EOI) until global collaboration is formed and an international team is put in place to conduct the further study Process remains open, further joining possible …

18 18 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 Infrastructure, cost estimates P. Lebrun Hadron collider D. Schulte Hadron injectors B. Goddard e- p option Integration aspects O. Brüning Future Circular Colliders - Conceptual Design Study Study coordination, M. Benedikt, F. Zimmermann e+ e- collider and injectors J. Wenninger Technology High Field Magnets L. Bottura Supercon- ducting RF E. Jensen Cryogenics L. Tavian Specific Technologies JM. Jimenez Physics and experiments Hadrons A. Ball, F. Gianotti, M. Mangano e+ e- A. Blondel J. Ellis, P. Janot e- p M. Klein Operation aspects, energy efficiency, safety, environment P. Collier Planning (Implementation roadmap, financial planning, reporting) F. Sonnemann, J. Gutleber FCC Kick-Off & Study Preparation Team

19 19 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 Proposal for FCC WBS top level preliminary

20 20 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 WBS – lower level example: FCC-ee study International contributors and convenors needed for technical areas and study organisation Draft work packages and units

21 21 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 Proposed international organization structure Collaboration Board 1 person/inst. Collaboration Board 1 person/inst. Steering Committee 2-3 persons/region Steering Committee 2-3 persons/region Advisory Committee 1-2 experts/field Advisory Committee 1-2 experts/field FCC Study Coordination FCC Study Coordination Hadron Collider Physics Experiments Lepton Collider Physics Experiments Lepton Collider Physics Experiments Hadron Injectors Hadron Injectors Hadron Collider Hadron Collider Lepton Collider Lepton Collider e-p Physics Experiments Accelerators e-p Physics Experiments Accelerators Infra- structures Operation Infra- structures Operation Costing Planning Lepton Injectors Lepton Injectors Accelerator R&D Technologies Accelerator R&D Technologies CERN DG

22 22 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 Proposal for FCC Study Time Line Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4 Kick-off, collaboration forming,  study plan and organisation Release CDR & Workshop on next steps Workshop & Review  contents of CDR Workshop & Review  identification of baseline Ph 2: Conceptual study of baseline “strong interact.” Workshop & Review, cost model, LHC results  study re-scoping? Ph 3: Study consolidation Report Prepare 4 large FCC Workshops distributed over participating regions Ph 1: Explore options “weak interaction”

23 23 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 Possible FCC Study Phases Phase 1: Explore options, now – spring 2015: -Investigate different options in all technical areas, taking a broad view -Deliverables: description and comparison of options with relative merits/cost -FCC workshop to converge to common baseline with small number of options -Proposed WS date 23 – 27 March 2015 (presently no known collisions…) -Followed by review ~2 months later, begin June 2015 Phase 2: Conceptual design: spring 2015 – autumn Conceptual study of baseline and remaining options with iterations between all areas -Deliverable: description of baseline with first cost model, identification of critical areas, cost drivers, performance limitations -FCC workshop to discuss conceptual design, performance and cost figures -Proposed date autumn Followed by review 2 months later to take into account LHC results and do re-scoping of study for phase 3 Phase 3: Study consolidation: winter 2016 – winter Detailed conceptual design of re-scoped baseline -Deliverables: description of re-scoped baseline with cost model, identification of critical areas, cost drivers, performance limitations, planning for further R&D activities -FCC workshop to discuss conceptual design, performance and cost figures and contents for CDR editing. -Proposed date autumn Followed by review 2 months later to confirm CDR contents Phase4: Editing conceptual design report: winter 2017 – summer 2018

24 24 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 Goals fo EU DS: conceptual design, prototypes, cost estimates, … From FP7 HiLumi LHC DS  positive experience: 5-6 work packages as sub-set of FCC study ~10-15 beneficiaries (signatories of the contract with EC) FCC EU Design Study (DS) Proposal Horizon2020 call – design study, deadline Prepare proposal parallel to FCC collaboration setup Non-EU partners can join as beneficiary – signatory with or w/o EC contribution (contractual commitment) or as associated partner – non- signatory (in-kind contribution with own funding, no contractual commitment) kick-off event input from interested partners, end of May submission of EU FCC DS proposal, 2 Sept. discussions iteration, agreements, signatures March April May June July August September 2014 complete draft proposal, end of June Time line

25 25 Future Circular Collider Study Michael Benedikt FCC Kick-Off 2014 In line with the European Strategy, CERN is launching a 5-year international design study for Future Circular Colliders; Worldwide collaboration in all areas - physics, experiments and accelerators – is essential to reach CDR level by FCC R&D areas e.g. SC high-field magnets and SC RF are of general interest & relevant for many other applications. Significant R&D investments have been made over last decade(s), e.g. in the framework of LHC and HL-LHC; further continuation will ensure efficient use of past investments. Goals of kick-off meeting: Introducing FCC study, discussing study scope and organization, preparing and establishing collaboration! Invitation to join! FCC Study - Summary


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